Open AccessRemovable molar power arm
Author(s) -
Raj Kumar Verma,
Ashok Kumar Jena,
Satinder Singh,
Ashok Utreja
Publication year - 2013
Publication title -
contemporary clinical dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.289
H-Index - 21
eISSN - 0976-237X
pISSN - 0976-2361
DOI - 10.4103/0976-237x.118341
Subject(s) - molar , maxillary molar , tube (container) , mandibular first molar , orthodontics , maxillary first molar , anterior teeth , hook , dentistry , materials science , medicine , composite material
Attachment of force elements from the gingival hook of maxillary molar tubes during the retraction of the anterior teeth is very common in orthodontic practice. As the line of force passes below the center of resistance (CR) of molar, it results its mesial tipping and also anchorage loss. To overcome this problem, the line of force should pass along the CR of molar. This article highlights a method to overcome this problem by attaching a removable power arm to the headgear tube of molar tube during the retraction of the anterior teeth.